The Rev. C. Frank Phillips, founder of a religious order of men and pastor at the storied St. John Cantius Catholic Parish, was removed last week by the Archdiocese of Chicago amid an investigation into allegations of improper conduct with adult men, according to church officials.

In a statement to parishioners, Cardinal Blase Cupich explained that he had made the decision to “withdraw” Phillips after learning “of credible allegations of improper conduct involving adult men.” Anne Maselli, a spokeswoman for the archdiocese, said in an email that the allegations do not involve any minors.

Phillips is barred from performing any priestly duties, including administering the sacraments. The allegations will be investigated by the Congregation of the Resurrection, the Catholic religious organization of which the group founded by Phillips is part, according to the statement.

“I am aware that this is difficult news to receive, but the Archdiocese of Chicago is committed to ensuring those serving our parishioners are fit for ministry,” Cupich said in a statement. “Know that this decision was made after careful consideration. I will continue to pray for you and am confident the Lord will sustain the St. John Cantius community as you make this transition.”